.question{
    width: 630px;
    height: 180px;
}
.question span{
    display: inline-block;
}
.question textarea{
    padding: 10px;
    float: right;
}
.attachment_div{
    width: 550px;
    height: 40px;
    line-height: 40px;
    margin-bottom: 28px;
}
.attachment_div input{
    border: none;
    padding: 10px 20px;
}
.question_btn{
    border: none;
    width: 220px;
    height: 50px;
    margin-left: 100px;
}
.kno_list li{
    height: 40px;
    line-height: 40px;
    width: 500px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

